Today | Weather | Wednesday, October 1, 2025

Weather in Redwood City, California

11:29 AM

Now

70° F

Feels Like 66°

Precipitation 52 %

Wind 7 mph

UV Index (0 - 11+) 10

Humidity 65 %

Today

Day 75°

Night 64°

Precipitation 95 %

Wind 8 mph

UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Redwood City Weather Forecast Updated

53 minutes ago

Last updated on October 01, 2025 10:36 AM

Air quality in Redwood City

NOW

34 AQI

Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 6.00 µg/m³

PM10 7.90 µg/m³

O₃ 30.18 ppb

NO₂ 5.06 ppb

SO₂ 0.75 ppb

CO 141.75 ppb

PM_2.5 – Fine particles <2.5μm

PM₁₀ – Inhalable particles <10μm

O₃ – Ozone

NO₂ – Nitrogen dioxide

SO₂ – Sulfur dioxide

CO – Carbon monoxide

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

View Hourly Air Quality Forecast